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path: root/drivers/net/wireless/iwlwifi/iwl-trans.c
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* iwlagn: probe would crash with DEBUG_SHIRQEmmanuel Grumbach2011-07-211-3/+3
| | | | | | | | | | | | | | This is since my patch: iwlagn: introduce transport layer and implement rx_init The IRQ is requested before the locks are initialized, hence the crash. Initialize the tasklet before we request the IRQ on the way. Reported-by: Johannes Berg <johannes.berg@intel.com> Tested-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: simplify the bus architectureEmmanuel Grumbach2011-07-211-19/+19
| | | | | | | | | | | | | | | | | | | Call iwl_probe with a ready iwl_bus struct. This means that the bus layer assigns the irq, dev and iwl_bus_ops pointers to iwl_bus before giving it to iwl_probe. The device specific struct is allocated together with the common iwl_bus struct by the bus specific layer. The pointer to the aggregate struct is passed to the upper layer that holds a pointer to iwl_bus instead of an embedded iw_bus. The private data given to the PCI subsystem is now iwl_bus and not iwl_priv. Provide bus_* inliners on the way in order to simplify the syntax. Rename iwl-pci.h -> iwl-bus.h since it is bus agnostic and represent the external of the bus layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: transport layer receives struct iwl_trans*Emmanuel Grumbach2011-07-211-4/+5
| | | | | | | | | It still holds a pointer to iwl_priv. But hopefully this will disappear at some point. Also add the multiple inclusion protection to iwl-trans.h that was forgotten. Move iwl-trans structures to iwl-trans.h Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: move iwl_prepare_card_hw to the transport layerEmmanuel Grumbach2011-07-211-3/+5
| | | | | | | This function is really related to the transport layer - move it. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: move more functions from the start flow to the transport layerEmmanuel Grumbach2011-07-211-8/+156
| | | | | | | | Basically all the nic_init flow should be in the transport layer. iwl_prepare_card_hw will move to the transport too in a separate patch. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: SCD configuration for AMPDU moves to transport layerEmmanuel Grumbach2011-07-211-3/+7
| | | | | | | All the configurations of the HW for AMPDU are now in the transport layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: add kick_nic API to transport layerEmmanuel Grumbach2011-07-211-0/+7
| | | | | | | kick_nic means to remove the RESET bit from the embedded CPU Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>
* iwlagn: add tx start API to transport layerEmmanuel Grumbach2011-07-161-2/+151
| | | | | | | | tx start will start the tx queues: basically configure the SCD Remove the IWLAGN prefix to SCD defines on the way. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>
* iwlagn: move iwlagn_stop_device to transport layerEmmanuel Grumbach2011-07-161-2/+42
| | | | | | | | Since iwlagn_stop_device was the only caller to the rx_stop / tx_stop, these two don't need to be API any more. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.guy@intel.com>
* iwlagn: move rx transport functions to iwl-trans-rx-pcie.cEmmanuel Grumbach2011-07-161-0/+61
| | | | | | | | Also create a new file: iwl-trans-int-pcie.h which will include the non static functions that are shared among the current pcie transport layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: move sync_irq to transport layerEmmanuel Grumbach2011-07-161-0/+8
| | | | | | | | | Since all the irq / tasklet is now handled in the transport layer, it should give an API to ensure that all the irq / tasklet have finished running. This will allow the upper layer to release all its resources. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: move the tasklet / irq to the transport layerEmmanuel Grumbach2011-07-161-2/+27
| | | | | | | | | PCIe doesn't provide any ISR registration API, whereas other buses do. Hence, we need to move the tasklet and irq to the transport layer to allow this flexibility. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: move Tx datapath to transport layerEmmanuel Grumbach2011-07-161-0/+156
| | | | | | | | | Split the Tx datapath in two parts: * the first deals with the Tx cmd composition * the second attaches the skb + Tx cmd to the queues Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: provide heplers to access the transport opsEmmanuel Grumbach2011-07-111-2/+2
| | | | | | | | This removes the for priv->trans.ops->... Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: remove the indirection for the dma channel numWey-Yi Guy2011-07-111-1/+1
| | | | | | | Not needed since the driver split. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: consolidate the API that sends host commands and move to transportEmmanuel Grumbach2011-07-111-0/+4
| | | | | | | | | | | | | | | Now, there are only two functions to send a host command: * send_cmd that receives a iwl_host_cmd * send_cmd_pdu that builds the iwl_host_cmd itself and received flags The flags CMD_ASYNC / CMD_SYNC / CMD_WANT_SKB are not changed by the API functions. Kill the unused flags CMD_SIZE_NORMAL / CMD_NO_SKB on the way. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: remove code duplicationEmmanuel Grumbach2011-07-111-1/+0
| | | | | | | | Code duplication was needed during the move, not needed any more. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: add an API for TX stopEmmanuel Grumbach2011-07-111-0/+56
| | | | | | | | Tx stop moves to transport layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: add an API for RX stopEmmanuel Grumbach2011-07-111-0/+10
| | | | | | | | Rx stop moves to transport layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: add an API to free the TX contextEmmanuel Grumbach2011-07-111-2/+81
| | | | | | | | | | | Tx free functions move to the transport layer. Unify the functions that deal with tx queues and cmd queue. Since the CMD queue is not fully allocated, but uses the q->n_bd / q->window trick, the release flow of TX queue and CMD queue was different. iwlagn_txq_free_tfd receives now the index of the TFD to be freed, which allows to unify the release flow for all the queues. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* iwlagn: move the tx allocation funcs to the transport layerEmmanuel Grumbach2011-07-011-0/+228
| | | | | | | These functions allocate all the Tx context. Only the simple tx_init is exported as API. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: add rx_free to transport layerEmmanuel Grumbach2011-07-011-19/+59
| | | | | | | The transport layer ness to release all rx ressources. This function is an API for it. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
* iwlagn: introduce transport layer and implement rx_initEmmanuel Grumbach2011-07-011-0/+155
The transport layer is responsible for all the queues, DMA rings etc... This is the beginning of the separation of all the code that is tighly related to HW design to the aforementioned transport layer. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
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